JPS63234601A - Manufacture of body integrating type antenna - Google Patents

Abstract

PURPOSE:To form a conductor layer having antenna pattern by making a plastic made member and adhering a conductor foil or a conductor plate whose one side has an antenna pattern having adhesives onto the surface including a curved face of said plastic made member. CONSTITUTION:The plastic made member is manufactured and a conductor foil or plate whose one side has an antenna pattern provided with adhesives is adhered to the surface including especially a curved face of said plastic made member. The plastic made member may be made by a conventional method, but preferably by injection molding. Since the conductor foil or plate is adhered later to the antenna part, it is preferred that slots are formed to the antenna pattern and the surface is made flat after the conductor foil or plate is adhered. Thus, an antenna element made of a conductor is fitted strongly and beautifully.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a one-body antenna, particularly, but not exclusively, mounted on an automobile,
This invention relates to a method of manufacturing an in-vehicle antenna used for radio broadcasting, television broadcasting, car telephones, etc.

[Conventional technology]

In a typical prior art vehicle antenna, a long rod-shaped antenna is installed on the roof of a metal car body or near the rear trunk of a car in order to receive radio broadcasts and transmit and receive radio and car telephone calls. was.

[Problem that the invention seeks to solve]

Therefore, the antenna protrudes from the vehicle body, degrading the aesthetic appearance and generating wind noise while driving. Additionally, installation is time-consuming, and if the waterproof structure deteriorates, there is a possibility that rainwater may enter the vehicle interior through the power cables during rainy weather.

In other prior art, the antenna is formed embedded in the rear glass, resulting in poor rear visibility and the problem that different types of automobiles require antennas to be formed to fit each type of rear glass. was there.

Moreover, in recent years, the number of types of antennas that need to be installed in a single vehicle has increased, such as receiving radio broadcasts, transmitting and receiving radio and car phone calls, and even receiving TV broadcasts. The problem also arose that there was no extra space to install the .

Therefore, in order to solve the above-mentioned problems, the present applicant has developed an antenna that can be installed easily without impairing the aesthetic appearance or rear visibility, and without requiring a special space for the antenna. As an in-vehicle antenna, the antenna element is installed on a member that is raised above the installation location near the window in the interior of a metal vehicle body or at a desired location in the interior of a vehicle body made of insulating material. proposed an in-vehicle antenna characterized by
-13.485 specification). An example of such an antenna is a television broadcast reception antenna attached to a sound reproduction speaker box placed on a rear tray near a rear window inside a vehicle.

However, since the suitable location for mounting such an in-vehicle antenna is a plastic member and often includes a curved surface, it is not always possible to mount an antenna element made of a conductor firmly and beautifully on it. It's not easy.

[Means for Solving the Problems] A means for solving the above problems of the present invention is to produce a plastic member, and attach a conductor foil or plate having an antenna pattern to one side of the plastic member to form a conductive foil or plate having adhesive properties on one side. The present invention provides a method for manufacturing a one-body antenna, which is characterized in that it is attached to a surface of a member, particularly a curved surface.

Plastic parts can be manufactured according to conventional methods, but
Injection molding is generally preferred. However, in the present invention, since a conductive foil or plate is attached to the antenna portion later, it is preferable to form a groove in the antenna shape so that the surface becomes flat after the conductive foil or plate is attached. .

The antenna part may be made of any conductor, but copper is preferable.The conductor foil or plate is preferably flexible or plastic in order to be in close contact with the curved surface of the plastic member. For example, an adhesive is applied to one side of a copper plate with a thickness of about 100 μm, and after laminating a peel-off plate, an antenna shape is punched out, and the peel-off plate is peeled off and attached to a plastic member. It is preferable to preform the copper plate so as to conform to the final curved surface during or after punching out the antenna pattern. Alternatively, it is also possible to form copper foil in the shape of an antenna on a sheet that has been processed for asset formation, apply adhesive, and then press the entire sheet against a plastic member to adhere only the copper foil to the plastic member. .

Generally, after pasting, clear coating or anti-corrosion treatment is performed. Clear-coated or rust-proofed conductor foil or plate may be attached.

〔Example〕

In the following embodiment, a TV broadcast receiving antenna is formed in a sound reproduction speaker box placed on a rear tray near a rear window.

The antenna was formed only on the top cover of the speaker box. FIGS. 1A, 1B, and 1A are a plan view, a front view, and a side view of the upper cover 11 with the antenna 12, respectively, and FIG. 2 is a developed view of only the antenna 12. The maximum dimension of the speaker box upper cover 11 is 300 m.
x 234)m x 60m, while antenna 1
The length of 2 is 570m each.

250m, 125tsuru, 215m.

An upper cover 11 of a speaker box as shown in FIG. 1 was manufactured by injection molding ABS resin. At this time, a groove having a width of 4III and a depth of LOOttm was formed in the antenna forming portion.

Adhesive (Durotank A) on one side of a 100 μm thick copper plate
Q-1) was applied to a solid content of 30 μm, and a release paper was laminated thereon. This was punched out into an antenna shape 12 using Thomson processing, and at the same time, the antenna portion was preformed into a curved surface. The release paper was peeled off and it was attached to the upper cover 11. After that, anti-rust coating was applied.

〔Effect of the invention〕

According to the present invention, a durable antenna-shaped conductor layer can be formed on a plastic surface including a three-dimensional curved surface, and as a result, a special space is created for the antenna without impairing the aesthetic appearance or rear visibility of the car. It is clear that the industrial production of vehicle-mounted antennas that do not require antennas also makes it possible to form antennas on snack products.

[Brief explanation of drawings]

FIG. 1 is a third drawing showing the upper cover of a speaker box in which a television antenna is formed in an embodiment, and FIG. 2 is a developed view of the television antenna. 11... Upper cover of speaker box, 12...
・Antenna part.

Claims (1)

[Claims] 1. A method for producing a one-body antenna, which comprises producing a plastic member and adhering a conductive foil or plate having an antenna pattern with adhesive properties on one side to the curved surface of the plastic member. .